Truck for railway-cars.



J. GHAMBERLIN.

TRUCK FOB. RAILWAY CARS.

APPLICATION FILED 11110, 1911.

993,755. Patented May 30, 1911.

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INVFNTOR )ITTORNEY Patented Ma 30, 1911.

J. GHAMBERLIN TRUCK FOR RAILWAY CARS.

APPLICATION FILED r1113. 10, 1911.

JOHN cnamsnnrim, or

SUFFERN, NEW YORK, ASSIGN OR OF ONE-HALF 10 ALBERT H.

KELSALL, OF SUFFERN, NEW YORK.

TRUCK FOR RAILWAY-CARS.

' To all whom it may concern:

Be it known that 1, JOHN OHAMnnnLIN, a citizenof the United States, and a resident of Sufl'ern, in the county of Rockland and State of New York, have made and invented certain new and useful Improvements in Trucks for Railway-Cars, of which the fol-- lowing is a specification.

My invention relates to trucks for railway cars, and the object thereof is to provide a truck in which the journal boxes in which the axles rotate, and consequently the axles and wheels carried thereby, may be. easily removed from the truck for purposes of renewal or repair; to provide the truck with improved bolster mechanism, to provide a truck of simple construction and one which ma be easily manufactured; and to provide suc other improvements in and relating to railway car trucks as are hereinafter referred to and described.

With the above and'other objects in view, my invention consists in the improved truck for railway cars illustrated in the accompanying drawing, described in the following specification, and particularly claimed in the clauses of the concluding claim, and in such modifications thereof as will be obvious to one skilled in the art to which my invention relates.

In the drawings accompanying and forming a art of this application: Figure 1 is a View illustrating my improved truck as seen in side elevation; Fig. 2 is a view showing about one-half of the truck in plan; Fig. 3 1s a view showing a section taken upon a transverse vertical plane passing through the bolster of the truck and located midway between the pairs of wheels; Fig. 4 is a fragmentary View illustrating details of one of two supports located one upon each side of the truck and adapted to support the ends of the bolster; and Fig. 5 is a fragmentary View illustrating details of the side frame wherein the journal boxes are supported.

, In the drawings, Srepresents two axles such as are commonly provided in trucks for railway cars, and 9 are the truck wheels.

--.Each axle 8 is provided with a journal at its ends which rotate in journal boxes 10 of common or ordinary form and located outside the wheels, and with other journals between the wheels which rotate in journal boxes 11 of common or ordinary form and Specification of Letters Patent. Application filed February 10, 1911.

Patented May 30, 1911.

Serial No. 607,813.,

ments of the car-body one end of which is supported from the truck as will be understood. Thus it will be seen that a journal and journal box is provided upon each side of the several car wheels with which the truck is provided whereby the axles are greatly stifl'ened and a stronger truck procured.

The form of framing may be varied considcrably and the same is not of the essence of my invention. The frame is, however, so formed that the journal boxes and axles may be removed from the frame by a horizontal movement, to which end the frame is provided with recesses the open ends of which are in vertical planes and one of which is shown at 13, Fig. 5; and the open ends of these recesses are closed by vertically extending cover plates 14- which extend across the recesses and hold the journal boxes 10, 11 in place as will be understood. The cover plates 14 and the vertical back or bottom wall of the recess 13 form guides for the journal boxes within the recesses as they move up or down, such movement bein permitted by the springs 12 located within the recesses.

The cover plate 14 is detachably secured to the frame of the truck, and, when re leased therefrom, may be moved bodily in a horizontal direction. This permits the journal boxes and axles to be removed from the frame of the truck by simply lifting the truck so that the wheels are clear of the track, and then removing the cover plates 14: and moving the journal boxes and axle in a horizontal direction, an excessive elevation of the truck such as has generally been required being thus avoided.

As above stated, the form of the truck frame is of secondary importance. As shown, the truck frame is in the form of a double truss, the two trusses being superposed, with suitable interposcd braces, the

truss members being shown at 16, 17, 18 and I e 105 proper form and secured together by rivets 'so as to form a single unitary trussed frame 2 and 3, they being connected with one another to form the frame oi the truck by means of a transverse beam 22 formed preferably from pressed steel and towhich all said truss members are connected.

A bolster 23 is pivotally supported at the middle portion of the beam 22 as best shown in Fig. 3, and 24: are two vertically extending supporting members, one at either side of the truck, the lower ends of which are pivotally supported from the truck and the upper ends of which serve as supports for the ends of the bolster 23. In the form of trussed frame, shown, plates 25 are secured to the truss members to which plates the lower ends of the supporting members 24care pivotally connected by means of a bolt 26.

The upper ends of the supporting members are in rocking engagement with the under side of the bolster 23, the said. upper ends being preferably curved sons to maintain a upper ends of said members lie.

28 are filling pieces, or wedges, which, when removed after removing the bolts 29, loosen the cover plate or guide 14: to such an extent that it may be detached from the ends of the truss members which constitute the truck frame.

The supports above referred to prevent the ends of the bolster from tipping and thus keep the car'body level or in parallel relation .with the plane of the tracks, the bearings provided upon each side of each wheel secure a strong truck, and the removable cover plates permit'the journal boxes and axles to be conveniently removed from the truck as above explained.

The axles 8 employed in my improved truck are divided or two-partaxles of the type disclosed and claimed in my copending application filed February 10, 1911, Serial No. 607,812, although it will be understood that other types of divided axle may be used with my truck, or that continuous or solid axles may be used. As shown, the axle 8 is made in two parts, one of which has a hollow or sleeve portion 30 of considerable length while the other part has a projecting portion 31 which is rotatable within the sleeve portion 30. The part which has the projecting portion 31 has also a flange 32, and 33 is a ring in engagement with the flange 32 andtsecured to the portion of the axle which has the sleeveportion by means ofbolts as shown, whereby the two parts of the axle while free to rotate relative to one another are prevented from longitudinal movement and a single unitary axle is procured, all as explained at length in my eopending application above referred provision 0 double bearings one upon. each side of each wheel as hereinbefore disclosedz jl is of particular advanta e in trucks having divided or two-part ax es as the two parts of the axle being provided with two journals and the truck frame with two journal boxes in which said 'ournals rotate, the said axle is thus more e ectively supported, and a stronger truck secured, than were two bearings only provided for eachdivided axle. No claim is, however, made to the trussesforming side members and a transverse beam-connecting said side members; a bolster pivotally supported at the center .of said transverse beam; a vertically extending plate secured to said side members and two .vertically extendingoscillating supporting members, one for each end of said bolster, the lower ends of said supports being pivotally connected with said vertically extending plate and the upper ends thereof being in engagement with the ends of said bolster to thereby supportthe same.

2. In a truck for railwa' cars, a suitable frame adapted tosupport ournal boxes for i axles upon which the wheels are secured, said frame including superposed diamond trusses forming side members and a transverse beam connecting said side members; a bolster pivotally supported at'the center of said transverse beam; said. bolster being of box-like form and open upon its under side and two vertically extending oscillating supporting members, one for each end of said bolster, the lower ends of said supports being pivotally connected with said frame and the upper ends thereof being of a width corresponding with the internal width of said bolster and in rocking engagement with the under side of said bolster to thereby support the same.

3. In a truck for railwa cars, a suitable frame. adapted to support ournal boxes for axles upon which the wheels are secured, said frame including superposed diamond trusses forming side members and a transverse beam connecting said side members; a bolster pivotally supported at the center of said transverse beam; a vertically extending plate secured to said side members and two vertically extending oscillating supporting members, one foi cavli end of said bolster, the lower ends of said supports being pivotally connected with said vertically extending plate and the upper ends thereof being curved and in rocking engagement with the under side of said bolster to thereby support the same, said bolster being rovided on its under side and at each 0 its ends with means for preventing the upper ends of said supporting members from moving in a transverse direction.

4. In a truck for railway cars, a suitable frame adapted to support ournal boxes for axles upon which the wheels are secured, said frame including a transverse beam; a bolster pivotally' supported at the center of said transverse beam; said bolster being of box-like form and open upon its under side, and two vertically extending oscillating supporting members, one for each end of said bolster, the lower ends of said supports being pivotally connected with said frame and the upper ends thereof being of a width corresponding'with the internal width of said bolster and in rocking engagement with the underside of said bolster. to thereby sup port the same, said bolster being provided on its under side and at each of its ends with means for preventing the upper ends of said supporting members from, moving in a transverse direction.

5. In a truck for railway cars, an axle formed in two parts, said parts being rotatable with reference to one another, and each of which parts carries a wheel; two journals upon each of the parts of said axle, one journal being located upon each side of each of said wheels; journal boxes in which said several journals rotate; a suitable frame in which sa1d ournal boxes are supported; and means whereby the two parts of said axle are connected together to thereby form a single unitary axle, sa1d means being carried by said unitary axle, and the same being independent of said frame.- l

,6. In a truck for railwa cars, an axle formed in two parts, one 0 which parts is provided with a hollow -or sleeve portion and the other of which has 'a projecting portion extending into and rotatable within said sleeve portion, said second mentioned part having a flange; means engaging said flange and secured to said first mentioned part for preventing longitudinal movement of said two parts; twojournals upon each of the parts of said axle, one journal being located upon each side of each of said wheels; journal boxes in which said several journals rotate; and a suitable frame in which said journal boxes are supported.

7. In a truck for railway cars, two parallel axles, each formed in two Parts, said parts being rotatable with reference to one another, and each of which parts carries a wheel; two journal boxes upon each of the parts of each of said axles, one journal ing located upon each side of each of said wheels; journal boxes in which said several journals rotate; a suitable frame in which said several journal boxes are supported; means whereby the two parts ofeach of said axles are connected together to thereby form single unitary axles, said means being carried by said unitary axles, and the same being independent of said frame.

Signed at Sufi'ern, town of Rainapo, in the county of Rockland and State of New York, this 4th day of February A..D. 1911.

JOHN CHAMBERLIN. 

